[Solved] i291V only showing as 100baseTX on Maximus IX Hero 6700K

[mrmoebius]

At first I didn't notice and was happy enough to have working Ethernet, but for some reason the onboard i219V on my Maximus IX Hero is only showing up as 100baseTX and not 1000baseTX (gigabit). Is anyone else having this problem?

Ethernet:

  Type:    Ethernet
  Hardware:    Ethernet
  BSD Device Name:    en0
  IPv4 Addresses:    192.168.1.60
  IPv4:
  AdditionalRoutes:
  DestinationAddress:    192.168.1.60
  SubnetMask:    255.255.255.255
  DestinationAddress:    169.254.0.0
  SubnetMask:    255.255.0.0
  Addresses:    192.168.1.60
  ARPResolvedHardwareAddress:    c0:4a:00:57:2b:4a
  ARPResolvedIPAddress:    192.168.1.1
  Configuration Method:    DHCP
  ConfirmedInterfaceName:    en0
  Interface Name:    en0
  Network Signature:    IPv4.Router=192.168.1.1;IPv4.RouterHardwareAddress=c0:4a:00:57:2b:4a
  Router:    192.168.1.1
  Subnet Masks:    255.255.255.0
  IPv6:
  Configuration Method:    Automatic
  DNS:
  Server Addresses:    192.168.1.1
  DHCP Server Responses:
  Domain Name Servers:    192.168.1.1
  Lease Duration (seconds):    0
  DHCP Message Type:    0x05
  Routers:    192.168.1.1
  Server Identifier:    192.168.1.1
  Subnet Mask:    255.255.255.0
  Ethernet:
  MAC Address:    10:7b:44:4f:e5:14
  Media Options:    Full Duplex, Flow Control, energy-efficient-ethernet
  Media Subtype:    100baseTX
  Proxies:
  Exceptions List:    *.local, 169.254/16
  FTP Passive Mode:    Yes
  Service Order:    0

Things I've tried:

Install IntelMausiEthernet 2.3.0 from Multibeast:
Device detected fine, only 100baseTX

Try installing FakePCIID.kext and FakePCIID_Intel_GbX.kext using Kextbeast:
No change.

I'm not really sure where else to go with this. Any help would be appreciated.

 

[P1LGRIM]

IntelMausiEthernet.kext was confirmed this week to be working ok at 1GB.
Suggest you check your network.

 

[mrmoebius]

OK well this is very strange (and a bit embarrassing).
I had checked my network, sort of, before making this post.

I had a CAT 5E cable coming to this machine, but had this problem. I noticed the cable was a bit worn and actually had an area where it had been damaged, so I replaced it with a fresh CAT 6 cable. Still had the same problem.

After reading your reply, I plugged the same cable into my MacBook Pro (via thunderbolt gigabit adapter) and it also came back as 100baseTX.

So then I decided I would go back to my trusty ol' main computer and look at it, and it ALSO says 100baseTX.

All of my cabling is good, so I figure it must be something with my router. I rebooted it and even updated the firmware, but for some reason they all say 100baseTX. I'm guessing my router itself has glitched out. In case anyone's wondering, it's a TP-LINK TL-WR841HP.

I'll post in this thread and advise once I have this fixed. If it's not my network, could it be possible that other people are encountering this as well?

 

[mrmoebius]

OK so I'm officially an idiot
I bought that router a few years ago solely to use as a high powered (but cheap) WiFi access point. When my main router borked I just put it as the main and forgot it was only 100/T.

Doyoyoyoyyyyy....